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ST75C520PQFP 데이터시트(PDF) 42 Page - STMicroelectronics

부품명 ST75C520PQFP
상세설명  HIGH SPEED FAX MODEM DATA PUMP
PDF  45 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST75C520PQFP 데이터시트(HTML) 42 Page - STMicroelectronics

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X - DEFAULT CALL PROGRESS TONE DETEC-
TORS
Figure 10 : Call Progress Tone Detector Band 1
Figure 11 : Call Progress Tone Detector Band 2
XI - DEFAULT ANSWER TONE DETECTORS
Figure 12 : 2100Hz Answer Tone Detector
Figure 13 : 2225Hz Answer Tone Detector
XII - ELECTRICAL SCHEMATICS
Oscillator
When using a third harmonic crystal oscillator in series resonance mode (RS <40
Ω,C0 = 6pF, Pe = 0.1mW),
we recommend the following schematic :
56
5 5
5p F
(opti onal)
33pF
10n F
29.4 912M Hz
1
µH
EX TA L
X TA L
ST75C520
42/45



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